表扫描 meaning in Chinese
table scan
Examples
- Table scans always read and lock all the rows in the table
表扫描总是读取（并上锁）表中所有行。 - Cumulative count of range and table scans started on the index or heap
从索引或堆开始的范围和表扫描的累积计数。 - It will choose indexed access if it has lower cost than table scan
如果使用索引的开销比表扫描的开销低，优化器将选择索引访问。 - Table scan behavior
表扫描行为 - Avoid indexing very small tables because it is typically more efficient to do a table scan
因为进行表扫描通常效率更高，所以要避免对非常小的表创建索引。